St. Mary's Montessori School (2026 Profile)

Home > California > San Bernardino County > Rancho Cucamonga

St. Mary's Montessori School

6860 N Victoria Windrows Loop
Rancho Cucamonga, CA 91739

St. Mary's Montessori School in Rancho Cucamonga, CA, serves 49 udents in grades kindergarten through 5 in a suburban community setting.

Founded in 2013, this California K–5 private school offers a Montessori curriculum with a Catholic religious affiliation.

The school maintains a udent–teacher ratio of 8:1 with six teachers supporting its co–ed enrollment.

Approximately 73% of the udent body represents diverse racial and ethnic backgrounds.

Mary's Montessori School is part of a local network of religiously affiliated and Montessori early learning programs in the Rancho Cucamonga area.

Quick Facts (2026)

School Type: Montessori School
Grades: Kindergarten-5
Enrollment: 49 students
Application Deadline: None / Rolling
Source: National Center for Education Statistics (NCES)

School Overview

School Type

Montessori School

School Membership(s)School Assoc.

Other religious school association(s)

Religious Affiliation

Catholic

Grades Offered

Grades Kindergarten-5

Year Founded

2013

School Calendar

Student Body

Total Students

49 students

Student Body Type

Co-ed

% Students of Color

73%

State avg.: 51%

Students by Grade

St. Mary's Montessori School Student By Grade

Academics and Faculty

Total Classroom Teachers

6 teachers

Student-Teacher Ratio

8:1

National avg.:

Tuition and Acceptance Rate

Admission Deadline

None / Rolling

Application URL

School Notes

School Motto: “Within the child lies the fate of the future.”

Source: National Center for Education Statistics (NCES)

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The application deadline for St. Mary's Montessori School is rolling (applications are reviewed as they are received year-round).

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Quick Facts (2026)

School Type: Montessori School
Grades: Kindergarten-5
Enrollment: 49 students
Application Deadline: None / Rolling
Source: National Center for Education Statistics (NCES)

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Did You Know?

The average private school tuition in San Bernardino County, CA is $13,747 for elementary schools and $14,309 for high schools (read more about average private school tuition across the country).

The average acceptance rate in San Bernardino County, CA is 88% (read more about average acceptance rates across the country).